/* =============================================================================
   SEARCH HELP MODAL
   =============================================================================

   Help modal for the search/filter system. Displays tutorials, operator
   references, and clickable examples.

   Uses semantic tokens from themes.css for automatic theme support.
   ============================================================================= */

/* ========================================
   MODAL CONTAINER OVERRIDES
   ======================================== */

.search-help-modal {
    max-width: 700px;
    width: 95%;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
}

/* ========================================
   HEADER
   ======================================== */

.search-help-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg) var(--spacing-xl);
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    flex-shrink: 0;
}

.search-help-header h3 {
    margin: 0;
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-inverse);
}

.search-help-close {
    background: none;
    border: none;
    color: var(--text-inverse);
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    line-height: 1;
    opacity: 0.8;
    transition: opacity var(--transition-fast);
    padding: var(--spacing-xs);
}

.search-help-close:hover {
    opacity: 1;
}

/* ========================================
   BODY & CONTENT
   ======================================== */

.search-help-body {
    padding: 0;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0;
}

.search-help-content {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-lg) var(--spacing-xl);
}

/* ========================================
   TAB NAVIGATION
   ======================================== */

.search-help-tabs {
    display: flex;
    gap: var(--spacing-xs);
    padding: var(--spacing-md) var(--spacing-xl);
    background: var(--surface-secondary);
    border-bottom: 1px solid var(--border-primary);
    flex-shrink: 0;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.search-help-tab {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.search-help-tab:hover {
    color: var(--text-primary);
    background: var(--interactive-hover);
}

.search-help-tab.active {
    color: var(--color-primary);
    background: var(--color-primary-bg);
    font-weight: 600;
}

/* ========================================
   TAB CONTENT
   ======================================== */

.search-help-tab-content {
    display: none;
}

.search-help-tab-content.active {
    display: block;
}

/* ========================================
   HELP SECTIONS
   ======================================== */

.help-section {
    margin-bottom: var(--spacing-xl);
}

.help-section:last-child {
    margin-bottom: 0;
}

.help-section h4 {
    margin: 0 0 var(--spacing-sm) 0;
    font-size: var(--font-size-md);
    font-weight: 600;
    color: var(--text-primary);
}

.help-section p {
    margin: 0 0 var(--spacing-md) 0;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    line-height: 1.5;
}

/* ========================================
   CODE STYLING
   ======================================== */

.help-section code,
.help-table code,
.help-example-pill code {
    background: var(--surface-tertiary);
    color: var(--color-primary);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.9em;
}

/* ========================================
   EXAMPLE BLOCKS
   ======================================== */

.help-example-block {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--surface-tertiary);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-sm);
}

.help-example-block:last-child {
    margin-bottom: 0;
}

.help-arrow {
    color: var(--text-tertiary);
}

/* ========================================
   LIST STYLING
   ======================================== */

.help-list {
    margin: 0;
    padding-left: var(--spacing-xl);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.help-list li {
    margin-bottom: var(--spacing-xs);
}

.help-list li:last-child {
    margin-bottom: 0;
}

/* ========================================
   LOGIC BLOCKS (OR/AND explanation)
   ======================================== */

.help-logic-block {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.help-logic-item {
    display: grid;
    grid-template-columns: 50px 1fr;
    grid-template-rows: auto auto;
    gap: var(--spacing-xs) var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--surface-tertiary);
    border-radius: var(--radius-md);
    align-items: center;
}

.help-logic-label {
    grid-row: span 2;
    font-weight: 700;
    font-size: var(--font-size-lg);
    color: var(--color-primary);
    text-align: center;
}

.help-logic-desc {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.help-logic-item code {
    font-size: var(--font-size-sm);
}

.help-result {
    color: var(--text-tertiary);
    font-size: var(--font-size-xs);
    font-style: italic;
}

/* ========================================
   TABLES
   ======================================== */

.help-table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-md);
}

.help-table th,
.help-table td {
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--border-secondary);
}

.help-table th {
    background: var(--surface-tertiary);
    color: var(--text-primary);
    font-weight: 600;
    font-size: var(--font-size-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.help-table td {
    color: var(--text-secondary);
}

.help-table tr:last-child td {
    border-bottom: none;
}

.help-table tr:hover td {
    background: var(--surface-secondary);
}

.help-note {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    font-style: italic;
    margin-top: var(--spacing-sm);
}

/* ========================================
   KEYWORD GRID
   ======================================== */

.help-keyword-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-sm);
}

.help-keyword-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--surface-tertiary);
    border-radius: var(--radius-md);
}

.help-keyword-item code {
    font-size: var(--font-size-xs);
}

.help-keyword-item span {
    color: var(--text-tertiary);
    font-size: var(--font-size-xs);
}

/* ========================================
   EXAMPLE PILLS (Clickable)
   ======================================== */

.help-examples-grid {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.help-example-pill {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--surface-tertiary);
    border: 1px solid var(--border-secondary);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: left;
}

.help-example-pill:hover {
    background: var(--color-primary-bg);
    border-color: var(--color-primary);
    transform: translateY(-1px);
}

.help-example-pill:active {
    transform: translateY(0);
}

.help-example-pill .pill-label {
    font-weight: 600;
    font-size: var(--font-size-sm);
    color: var(--text-primary);
}

.help-example-pill code {
    font-size: var(--font-size-xs);
    background: transparent;
    padding: 0;
    color: var(--text-tertiary);
}

.help-example-pill:hover code {
    color: var(--color-primary);
}

/* ========================================
   HELP BUTTON (to trigger modal)
   ======================================== */

.search-help-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: var(--surface-tertiary);
    border: 1px solid var(--border-secondary);
    border-radius: var(--radius-full);
    color: var(--text-secondary);
    font-size: var(--font-size-md);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.search-help-btn:hover {
    background: var(--color-primary-bg);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.search-help-btn:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */

@media (max-width: 768px) {
    .search-help-modal {
        max-height: 90vh;
        width: 100%;
        max-width: 100%;
        border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        margin-top: auto;
    }

    .search-help-header {
        border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    }

    .search-help-tabs {
        padding: var(--spacing-sm) var(--spacing-md);
        gap: var(--spacing-xs);
    }

    .search-help-tab {
        padding: var(--spacing-xs) var(--spacing-md);
        font-size: var(--font-size-xs);
    }

    .search-help-content {
        padding: var(--spacing-md);
    }

    .help-section h4 {
        font-size: var(--font-size-sm);
    }

    .help-table {
        font-size: var(--font-size-xs);
    }

    .help-table th,
    .help-table td {
        padding: var(--spacing-xs) var(--spacing-sm);
    }

    .help-keyword-grid {
        grid-template-columns: 1fr;
    }

    .help-logic-item {
        grid-template-columns: 40px 1fr;
    }

    .help-example-pill {
        width: 100%;
    }
}

/* ========================================
   REDUCED MOTION
   ======================================== */

@media (prefers-reduced-motion: reduce) {
    .help-example-pill:hover {
        transform: none;
    }
}